Get a webhook subscription

curl --request GET \
  --url https://stoplight.io/mocks/replyteam/reply/765516802/webhooks/{id}

{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "targetUrl": "https://api.example.com/webhook/reply",
  "eventTypes": [
    "email_replied",
    "email_sent"
  ],
  "isActive": true,
  "secret": "hmac-secret-key",
  "attempt": 0,
  "createdAt": "2024-03-08T12:00:00Z",
  "updatedAt": "2024-03-08T12:00:00Z",
  "subscriptionLevel": "account",
  "accountId": 12345
}